Rotel RX-1052 Service manual

RX 1052

1 Byte waveform format

Baud Rate Parity

19200 n 8 1 none

Valid data bits Stop bit value Handshaking Data type

string

1. RX1052 -> PC

ID: xxxyyyzz

Display data

Start Count ID Type Chk

Data

char1~11

0xfe 0x12 0x61 0x20 flag1 … flag5 char1 … char11 xx ASCII Characters

flag1: flag2: flag3:
bit7 bit7 RT bit7 LW
bit6 AUTO bit6 EON bit6 MW
bit5 MEMORY bit5 TP bit5 FM

bit4 PRESET bit4 TA bit4 ANT
bit3 spk_a_led bit3 AF bit3
bit2 spk_b_led bit2 STEREO bit2

bit1 zone_led bit1 TUNED bit1 RBDS
bit0 stby_led bit0 bit0 RDS

flag4: flag5:
bit7 bit7 disp mode 1
bit6 bit6 disp mode 0
bit5 bit5

bit4 bit4
bit3 bit3 display mode1
bit2 bit2 display mode0

bit1 bit1
bit0 AM bit0

Normal FL off

01
00

2. PC -> RX1052

Start Count ID Type Key Chk

0xfe 0x03 0x61 0x10 xx xx

key: key: key: key:
0x00 RMC Vol+ 0x10 Bass- 0x20 Tune / Preset 0x30 7
0x01 RMC Vol- 0x11 0x21 Preset Scan 0x31 8
0x02 CD 0x12 0x22 0x32 9
0x03 Tuner 0x13 0x23 Zone 2 / Main 0x33 0
0x04 Tape 0x14 0x24 Band 0x34
0x05 Video1 0x15 0x25 Freq. Direct 0x35 Phono
0x06 Video2 0x16 0x26 Mono
0x07 Video3 0x17 Rec 0x27 Memory / Enter 0x4a Power Off
0x08 Video4 0x18 FL Label 0x28 Tuning+ 0x4b Power On
0x09 0x19 Enter/Tone 0x29 Tuning­0x0a Power 0x1a Right (+) 0x2a 1 0x50 Speaker A
0x0b Vol+ 0x1b Left (-) 0x2b 2 0x51 Speaker B
0x0c Vol- 0x1c 0x2c 3 0x52 FL On/Off
0x0d Treble+ 0x1d 0x2d 4
0x0e Treble- 0x1e Mute 0x2e 5 0x55 FM
0x0f Bass+ 0x1f 0x2f 6 0x56 AM

key: key:
0x60 0x7f NULL
0x61 0xff Display Refresh
0x62
0x63
0x64
0x65
0x66
0x67 Tone
0x68
0x69 Tuning
0x6a Preset
0x6b Source
0x6c
0x6d
0x6e Party Mode
0x6f